Statfs patfnt office



(No Model.)

W. M. JACKSON.

GAS BURNER TIP.

N0. 386,588. I Patented July 24, 1888.

o a I gvvuawtoz, it, "I, Mm, 771 4 83 @Hoz'vwgy Nrrn XVALTER MARSHJACKSON, OF NEXV YORK, N. Y., ASSIGNOR TO THE GAS CONSUMERS BENEFITCOMPANY OF THE UNITED STATES, OF SAME PLACE.

GAS=BURNER TIP.

SPECIFICATION forming part of Letters Patent No. 386,588, dated July 24,1888.

Application filed April 14, 1887. Serial No. 234,929.

To all whom it may concern.-

Be it known that I, WALTER Mensa J ACK- SON, ofNew York, in the countyof New York and State of New York, have invented oer- 5 tain new anduseful Improvements in Gas Burner Tips; and I do hereby declare thefollowing to be a full, clear, and exact description of theinvention,such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to an improvement in tips for gas-burners, theobject being to combine with a gas-tip, preferably made of sheet metal,an integral regulator that will break up the direct current of gas, andby the subdivision of the moving column of gas reduce thedelivery-pressure at the tip, and in this way render the combustion ofgas uniform under varying pressures in the service'pipe.

A further object is to provide a gas-tip that from its manner ofconstruction renders unnecessary the employment of screens of gauzewirethat are usually placed in the pillars of gasburners as a check toprevent gas from blowing at the burner-tip, and also to afford a devicethat can be readily cleaned in case there is a deposit of impurity thathas a clogging action, and which renders ordinary gauze-screens uselessas well as the burner in which they are placed.

\Vith these objects in view my invent-ion consists in a closed tipshankhaving perforations or restricted openings therein to check and break upthe direct flow of gas in its passage from the pillar below the tip tothe burner-slit.

My invention further consists in certain features of construction andcombinations of parts that will be hereinafter described, and

0 pointed out in the claim.

Referring to the drawings, making a part of this specification, Figure lis a sectional perspective view of the burner-tip in section through thecenter. Fig. 2 is a perspective 5 View of the burner-tip with the lowersurface shown. Figs. 3, 4, 5, and 6 are views show ing modified forms ofthe improved burnertip.

In Figs. 1 and 2, in which the preferred form of tip is shown, Arepresents the shank (No model.)

or slightly conical wall adapted to fit the up per end of' theburner-pillar. This shank is cut, struck, or pressed into form fromsheet metal, and has its lower end closed with a head, a, that isintegral with or of the same piece of material of which the tapered wallof the shank is made. The upper edge, I), of the shank A is given anoffset laterally, and then upwardly to produce a seat on which the shortconieai ferrule c is supported, the flange e of this piece 0 affording abase on which it rests.

On the upper surface of the flange c the conoidal head 6 of the tip isseated, its flange 0 being of such a relative diameter from edge to edgethat it will neatly fit into the recess formed by the upturned flange aof thcshank A, these several parts being secured together by the turningdown of the flange (0 upon the flange c of the conoidal head 0 toproduce a neat rimmed edge.

The conoidal ferrule c has an inwardly-extended flange, 0 formed on itsupper edge, this conoidal ferrule being intended to appreach near theinner surface of the conoidal head of the tip, and in effect to form anex cavated head that by its deflection of the gas passing through it andreacting on its flanged upper edge, 0, spreads the gas evenly as itpasses through the slitfof the tip-head, and s 011 ignition an evenfan-like flame peculiar to the bat-wing burner is produced, providing acurrent of gas of regulated proper pressure is supplied.

In the form of tip just described the lower 8 end or head,a,is given aconcave or inwardlydished form, the surface being perforated inconcentric circles that are such a distance separated as to produce ascreen, the size of the perforations being such as to provide a check tothe current of gas which is broken up into numerous smalljets, thecombined coluinn of which furnishes a supply of gas to the burner-slitimmediately above it, the conoidal ferrule c eoacting with theperforated lower 5 end of the tipshank to produce an even regulatedpressure at the burner-slit and afford a flame that is devoid of theragged edges and blue core shown in the flame of a gas-tip of usualform, that is not provided with a means I00 of regulation exterior toitself. In the other figures an integral closed lower end of thetipshank is shown with a concave head, a convex or exteriorly roundedhead, a conoidal or tapering closed lower end, as well as a flat disk toclose the lower end. I have shown these several forms to illustrate thevarious shapes that are available to carry into effect the principleinvolved, which is the closed lower portion of the body of the shank.Any oftthe several formsshown, or other forms that are modifications ofthese, may be employed. I prefer to perforate the closed lower end orhead, or the head and body, or the side of the lower end of the shankmay be perforated to produce a number of small holes, that arepreferably arranged in regular order to allow spaced intervals betweenthem, the object being to produce a fine sieve like screen, throughwhich the gas will pass and be measurably retarded by frictional contactwith the edges of these holes, and in case the end of the tip-shank isdished inwardly to render it concave, the gas in its passage through theperforations made in the concave surface of the head will be deflectedfrom a direct course to the tip-slit and by this break in direction ofthe subdivided current a regulation of flow is effected and a full clearlight is afforded at the tip-slit, as has previously been described.

It is evident that in place of the series of perforations made in thelower portion of the closed tip-shank one or more slits may be madethrough the wall of the shank or its head, as shown in Figs. 6 and 5, torestrict the flow of gas and measurably obtain the same results. I amaware that burners have been used in which two separate slitted tipshave been employed-one as a regulator the other as a burner; hence Imake no claim to such a construction.

By perforating or slotting the lower closed end of the tip the directcurrent of gas is broken up and the delivery-pressure at the tipreduced, and in this way the combustion of gas is rendered uniform undervarying pressures; and by the arrangement of the conoidal gas-regulatorwithin the head a substantially hemispherical gas chamber is formed inthe assess extreme upper end of the head, into which the gas under thereduced pressure enters. As the gas issues from the slot or openingformed by flange c, it impinges against the converging surfaces of theinner surface of the head of the tip, which operates to deflect the flowagainst the flattened upper surface of flange cflcausing the gas to flowuniformly toward and through the flame-slot in radial lines in alldirections within the boundaries of the flame-slot.

I do not desire to restrict myself to the use of the closed tip-shank,in combination with the conical ferrule c, which affords a substitutefor an excavated head when placed in the tip above the screen, as thismay be dispensed with or possibly modified in form. The proportion ofsize of the holes or number of the same may give a fair degree ofregulation of the flame.

, Other slight changes might be made in the details of construction ofthis buruer'tip without departure from the scope of my invention. I donot therefore wish to restrict myself to the exact forms shown; but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is- I As a new article of manufacture, a tipfor gasburners, consisting of a slightly-conical shank having aperforated lower end and a flanged upper end, a ferrule having anoutweirdly-projecting flange adapted to rest in contact with the flangeof the shank and an in wardly-projecting flange for deflecting the gasin its passage to the exit-slit in the head, and the rounded or curvedhead having a slot extending across the top and sides of the head, theends of the slot being in or approximately in a plane withtheinwardly-projecting flange, substantially as set forth.

In testimony whereofl have signed my name to this specification in thepresence of two subscribing witnesses.

WALTER MARSH JACKSON.

Witnesses:

WILLIAM D. TILDEN, GEO. T. GADEN.

